Lazy Spa Water Test Strips . 2.fast testing immerse the test strip in water for 2 seconds, take it out, shake off the excess water, still in the air and wait 15 seconds, then match the results with the detail chart on bottle. If you use a bromine system, make sure you’re testing for that, too. Clearwater chemical starter kit. Lazy spa. Hot tub. Lay z from www.gumtree.com The kit includes 500g chlorine granules for disinfecting pools & spas, 500g ph plus for increasing ph of pool & spa water, 700g ph minus for decreasing ph of pool & spa water, 500ml foam remover and 25 test strips to test for total alkalinity,. Use test strips to test your chemical balance. For tackling green spa water, first test the water with test strips to see where the total hardness, total chlorine or bromine, ph, alkalinity, and free chlorine levels are.